News

Interactive Tools

Click a letter to see a list of conditions beginning with that letter.

Click 'Topic Index' to return to the index for the current topic.

Click 'Library Index' to return to the listing of all topics.

What Do You Know About Child Development?

Test your knowledge of child development by taking this quiz.

1. When riding in a motor vehicle, how tall should a child be to sit in a regular seat and use an adult seat belt instead of a being strapped into a car safety seat or booster seat?

You didn't answer this question.

You answered

The correct answer is

Children are usually big enough to use a regular seat when they are 8 to 12 years old. Before allowing your children to use the regular seat and adult seat belt, make sure the seat belts fit them. The shoulder belt should lie across the chest, not the neck or throat, says the American Academy of Pediatrics (AAP). The lap belt should lie across the thighs, not the stomach. Children should be big enough to sit so that their back is against the back of the seat and their feet are hanging down, with the knees bent. Until your child reaches this size, he or she should remain in a booster seat.

A. 3 feet, 5 inchesB. 4 feetC. 4 feet, 9 inchesD. 5 feet

2. For which of these should you call your doctor instead of trying at-home treatment?

You didn't answer this question.

You answered

The correct answer is

Call your child's doctor if your child has fallen or taken a blow to the head and briefly lost consciousness, is acting strangely, or is vomiting. Seek emergency medical help after a fall or blow to the head if your child is unconscious; is breathing abnormally; is bleeding from the mouth, nose or ear; has pupils of unequal size; or is dizzy or confused.

A. DiarrheaB. Head traumaC. NosebleedsD. A and C

3. Two out of 3 teen girls don't get enough of which of these in their diet?

You didn't answer this question.

You answered

The correct answer is

Teens need calcium for growing bones. Most calcium in the diet comes from milk and other dairy products.

A. CalciumB. MineralsC. OxygenD. Vitamins

4. How much has the rate of obesity in children increased in the last 35 years?

You didn't answer this question.

You answered

The correct answer is

According to the CDC's National Health and Nutrition Examination Survey, 19.5% of children ages 6 to 17 were obese in 2011 to 2014. In 1976 to 1980, 5.7% of children ages 6 to 17 were obese.

A. Hasn't increasedB. Increased by 10%C. More than doubledD. None of the above

5. Menstruation can begin at which of these ages in girls?

You didn't answer this question.

You answered

The correct answer is

In the United States, the average age for a girl to start menstruating is 12. The start of menstruation—called menarche—cannot occur until a girl's entire reproductive system has matured.

A. 8B. 12C. 16D. All of the above

6. It's estimated that 3 to 7 percent of American school children have attention deficit hyperactivity disorder (ADHD). Which of these famous people is thought to have had the condition?